SAE 2 Pin

Archive for March, 2015

SAE 2 Pin Connector Pigtails

by on Mar.26, 2015, under Availability

What is an SAE 2 Pin  “connector pigtail”, and how can it be used?

A “connector pigtail” is a connector with a “pigtail” of cord, or leads…

A “connector pigtail” facilitates the replacement of a worn or otherwise faulty connector…

By cutting the existing cord or leads appropriately, the new connector assembly can be connected to the loose ends left by the cut.

Best Practice warrants soldering the conductor connections and the application of heat shrink tubing to re-establish insulation and protection.

Care must be taken to identify the Polarity prior to cutting, as well as making the circuit safe by parting connectors or pulling a fuse.

The Polarity of the Connector is specific: Hot (+) Positive leading to either the Protected “Female” Socket side of the connector or the Exposed Male” Pin side (either being the case with an SAE 2 Pin connector).  Specific insulation color may be indicative – for example, red indicating “Hot (+) Positive”.

Another important aspect is matching the wire gauge.  Existing fuse protection is based on protecting the existing wire gauge.  Slightly heavier would be OK, but smaller would not.

Wire Stripper Tool

Wire Stripper Tool


Vise Setup for Soldering Wires

Vise Setup for Soldering Wires

Soldering Torch, Solder, Setup

Soldering Torch, Solder, Setup

Re-insulation with Heat Shrinkable Tubing

Re-insulation with Heat Shrinkable Tubing

Finished Product with Soldered Joint Re-insulated

Finished Product with Soldered Joint Re-insulated

Beyond repairing an existing circuit, Connector Pigtails can also be used to establish a “disconnect point”, when building a circuit.

What is sometimes called a “Connector Whip”, might also prove useful.  This is a Connector assembly with a longer cord or leads – say 5′ (vs the 6″ or 12″ known as “Pigtails”).

Changing Connector assemblies provides the opportunity for upgrading.  We make available more durable configurations employing greater reinforcement for strain relief.  This adds the benefit of being easier to manipulate (connect & disconnect), as well.

As a result of frequent connection & disconnection, the conductors often become brittle and break within their insulation – thus interrupting electrical continuity.  Configurations with added strain relief (reinforcement at the back end of the connector) tend to last longer when frequently coupled & uncoupled.

Connectors “mass produced” offshore and sold at discount automotive stores, generally lack such attributes.  High Quality is immediately evident upon inspection of Connectors manufactured here in the United States to meet real world conditions and service.

We are committed to making an assortment of SAE 2 Pin Connector configurations available with wide range of conductor gauges – manufactured here in the USA, and at reasonable prices.

We do carry a mass produced SAE 2 Pin connector assembly (manufactured offshore) for appropriate application.  Our Customers are therefore able to quickly see by visual comparison, the clear differences in Quality.

To view our full Product Line – Please visit our Solar Capitalist LLC ecommerce store at:

For Commercial Quantity purchases – Please Call Us at 302-562-1706 or email Us at:


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SAE 2 Pin, SAE 2 Pole, SAE 2 Prong, SAE 2 Conductor, Flat 2 Wire Trailer Plug, 12 Volt DC Connector

by on Mar.07, 2015, under Availability, Terminology

An interesting aspect of this connector is that although there are many descriptive terms (2 pin, 2 pole, 2 prong, 2 conductor, 2 wire, flat trailer plug, etc.) used to describe it, there is often much uncertainty with respect to its actual identification.  The “SAE” identifies it as a product of the automotive industry (SAE = Society of Automotive Engineers), but not everyone realizes that.  Some may find their way to one manufacturer’s marketing of this connector at an auto supply store.  Hopkins Manufacturing, widely known for trailer hitch related wiring components, markets this connector with the description “2 pole flat connector” assembly and the product number 47965.  The assembly is a 12″ long extension with red and white insulated 16 AWG conductors.  This product is mass produced outside the U.S., and the quality reflects that in terms of simplicity as well as the occurrence of quality issues.

Clearly, Hopkins avoids the “SAE” designation, as the uncertainty with respect to identification serves their purposes.  Knowing the proper designation (and/or alternate descriptions) enables the searcher to cast a wider net in pursuit of not only sources but assembly variations.

Similarly, the well known producer of Battery Tenders – Deltran Corporation, also avoids using the “SAE” designation.  Deltran’s Battery Tenders include cable assemblies using SAE 2 Pin connectors.

It doesn’t end there – SAE 2 Pin connectors are also widely used for coupling to Portable Solar Chargers.  Here too, the “SAE” designation is left out of the description.  Thus, limiting the users choices in finding alternate sources (or the fabrication) of cable assemblies.

Wikipedia includes information pertinent to this connector in its description of DC connectors:

As stated, the purpose of this Blog is to provide a forum to facilitate discussion of topics pertinent to SAE 2 Pin Connectors.  We welcome our reader’s active participation in these discussions.  Please Comment your observations, questions, and experiences !!!


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